Not physically lost in the way that overgrown headstones disappear into bramble, but administratively misplaced, assigned to the wrong location on official records for decades.

Children's burial grounds, known in Irish as cillíní, were used for infants who died unbaptised and were therefore excluded from consecrated ground under Catholic practice. They appear across the Irish landscape in their hundreds, often occupying ancient or liminal sites, including the earthwork enclosures known as raths. A rath is a roughly circular raised enclosure, typically defined by an earthen bank and ditch, built during the early medieval period and used as a farmstead. The association between raths and cillíní is well documented; the perceived antiquity and separation of such sites made them appropriate, if unofficial, places of burial. In Breaghwy, a 1969 survey by Aldridge noted that a particular rath had been largely levelled, with only its northern portion surviving behind a fence, and that this remnant was being used as a children's burial ground. When official inventories were compiled in 1991 and 1997, that description was matched to a specific rath on record. The problem is that the rath identified in those inventories is fully intact, contradicting Aldridge's account of a largely demolished enclosure. The two descriptions cannot refer to the same place, which points to a clerical error made during the compilation process. The actual site where Aldridge observed the burial ground remains unlocated in the official record.